Pag-andar: Subscriber Line Interface Concept (SLIC), Interface: 4-Wire, Bilang ng mga Circuits: 2, Boltahe - Supply: 3.135V ~ 3.465V, Kasalukuyang - Supply: 25mA,
Pag-andar: Line Card Access Switch, Interface: TTL, Bilang ng mga Circuits: 1, Boltahe - Supply: 4.5V ~ 5.5V, Kasalukuyang - Supply: 2mA, Lakas (Watts): 10.5mW,